Have you looked into this family?
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6N6-RSL : 9 September 2017), Thomas Nash in household of Isaac Nash, New Lisbon, Stoddard, Missouri, United States; citing enumeration district ED 159, sheet 563C, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,254,737.
Perhaps seeing if you can find more info about Isaac will lead you somewhere.